8.35 PLUS Oil with a kinematic viscosity of 4 X 10-6 m²/s flows through a smooth pipe 12 cm in diameter at 2.3 m/s. What velocity should water have at 20°C in a smooth pipe 5 cm in diameter to be dynamically similar?

Obtain the values of vapor pressures of alcohol, water, and glycerin at a room temperature of 20 C.

Refer to Figure 7.24. The following data were collected during the field permeability measurement of a confined aquifer using a pumping test. Determine the hydraulic conductivity of the permeable layer. Use Eq. (7.49). Thickness of the aquifer, H = 4.5 m Piezometric level and radial distance of the first observation well: h1 = 2.9 m; r1 = 17.8 m Piezometric level and radial distance of the second observation well: h2 = 1.8 m; r2 = 8.1 m Rate of discharge from pumping, q = 0.5 m3/min

A structural member with a rectangular cross section as shown in the accompanying figure is used to support a load of 2500 N. What type of material do you recommend be used to carry the load safely? Base your calculations on the yield strength and a factor of safety of 2.0.